An Elite magical girl, Maria Thompson a third-year student at Mitakihara High school. She is a powerful veteran who fights with summoned muskets (sometimes mid-ranged firearms based on her musket's design) and ribbons, as well as a ladylike older sister figure who enjoys tea. She also acts as a mentor to othermagical girls, especially her own team. She often lives alone in a fancy apartment.

Single-shot percussion-lock rifled musket - Maria's primary weapon. Easily summonable in numbers, fired by hand or remotely, and also usable as a melee weapon. Expended bullets can summon strings to ensnare the foe. Uses the musket-type weapon developed by the Kajiurians.